Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN: 9780133594140
Author: James Kurose, Keith Ross
Publisher: PEARSON
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Write SQL code for (see image for the table structure):

Create a stored procedure "changeCreditLimit" to change the credit limit for a given
customer. If the customer’s total payment amount (note: payment amount is in the
table "payments") is not smaller than a given amount, then add 2000 to the customer’s
credit limit (note: credit limit is in the table "customers").

[画像:CREATE TABLE `payments ( `customerNumber' int(11) NOT NULL, 'checkNumber' varchar(50) NOT NULL, 'paymentDate` date NOT NULL, `amount` double NOT NULL, PRIMARY KEY (`customerNumber`, `checkNumber'), CONSTRAINT `payments ibfk 1 FOREIGN KEY (`customerNumber') REFERENCES 'customers' ('customerNumber') ) ENGINE=InnoDB DEFAULT CHARSET=latin1; CREATE TABLE `customers' ( `customerNumber' int(11) NOT NULL, 'customerName` varchar(50) NOT NULL, 'contactLastName` varchar(50) NOT NULL, 'contactFirstName` varchar(50) NOT NULL, 'phone varchar(50) NOT NULL, addressLine1 varchar(50) NOT NULL, `addressLine2` varchar(50) DEFAULT NULL, city' varchar(50) NOT NULL, state varchar(50) DEFAULT NULL, `postal Code varchar(15) DEFAULT NULL, 'country` varchar(50) NOT NULL, 'salesRepEmployee Number' int(11) DEFAULT NULL, `creditLimit' double DEFAULT NULL, PRIMARY KEY (`customerNumber"), KEY 'sales RepEmployeeNumber` (`salesRepEmployeeNumber"), CONSTRAINT customers ibfk 1 FOREIGN KEY (`salesRepEmployeeNumber") REFERENCES employees' ('employeeNumber') ) ENGINE=InnoDB DEFAULT CHARSET=latin1;]
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Transcribed Image Text:CREATE TABLE `payments ( `customerNumber' int(11) NOT NULL, 'checkNumber' varchar(50) NOT NULL, 'paymentDate` date NOT NULL, `amount` double NOT NULL, PRIMARY KEY (`customerNumber`, `checkNumber'), CONSTRAINT `payments ibfk 1 FOREIGN KEY (`customerNumber') REFERENCES 'customers' ('customerNumber') ) ENGINE=InnoDB DEFAULT CHARSET=latin1; CREATE TABLE `customers' ( `customerNumber' int(11) NOT NULL, 'customerName` varchar(50) NOT NULL, 'contactLastName` varchar(50) NOT NULL, 'contactFirstName` varchar(50) NOT NULL, 'phone varchar(50) NOT NULL, addressLine1 varchar(50) NOT NULL, `addressLine2` varchar(50) DEFAULT NULL, city' varchar(50) NOT NULL, state varchar(50) DEFAULT NULL, `postal Code varchar(15) DEFAULT NULL, 'country` varchar(50) NOT NULL, 'salesRepEmployee Number' int(11) DEFAULT NULL, `creditLimit' double DEFAULT NULL, PRIMARY KEY (`customerNumber"), KEY 'sales RepEmployeeNumber` (`salesRepEmployeeNumber"), CONSTRAINT customers ibfk 1 FOREIGN KEY (`salesRepEmployeeNumber") REFERENCES employees' ('employeeNumber') ) ENGINE=InnoDB DEFAULT CHARSET=latin1;
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